Two ways to kill fleas and ticks on contact. This shampoo uses pyrethrin and Insect Growth Regulator Precor. Kills insects and prevents infestation for up to 28 days. Kills adult fleas plus adult and immature ticks, including those carrying Lyme disease. Enriched with oatmeal, coconut extract, lanolin, and aloe for healthy coats. For cats and kittens 12 weeks of age or older.